Si bcc SW_LeeHwang_2012GGA_Si__MO_040570764911_000 3.3343707099556923 Optimization terminated successfully. Current function value: -4.344352 Iterations: 73 Function evaluations: 189 C11 = 557.232049 +/- 0.007336 GPa C12 = 412.926777 +/- 0.005187 GPa C44 = 38.703799 +/- 0.001834 GPa B = 461.028534 +/- 0.004235 GPa